<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区域 -->
    <el-card class="box-card">
      <!-- 添加用户区域 -->
      <el-row :gutter="20">
        <!-- 搜索用户区域 -->
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <!-- switch 状态开关区域 -->
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userstateChanged(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 编辑按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="delUser(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      @close="addDislogClosed"
      width="60%"
    >
      <el-form
        :model="addForm"
        ref="addFormRef"
        :rules="addFormRules"
        label-width="80px"
      >
        <el-form-item label="用户名：" prop="username">
          <el-input v-model="addForm.username" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="密码：" prop="password">
          <el-input v-model="addForm.password" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="邮箱：" prop="email">
          <el-input v-model="addForm.email" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="手机：" prop="mobile">
          <el-input v-model="addForm.mobile" autocomplete="off"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      @close="addDislogClosed"
      width="60%"
    >
      <el-form
        :model="editForm"
        ref="addFormRef"
        :rules="addFormRules"
        label-width="80px"
      >
        <el-form-item label="用户名：" prop="username">
          <el-input
            v-model="editForm.username"
            autocomplete="off"
            disabled
          ></el-input>
        </el-form-item>
        <el-form-item label="邮箱：" prop="email">
          <el-input v-model="editForm.email" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="手机：" prop="mobile">
          <el-input v-model="editForm.mobile" autocomplete="off"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser(editForm.id)"
          >确 定</el-button
        >
      </span>
    </el-dialog>
    <!-- 分配角色 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setDialogVisible"
      width="60%"
      @close="setRoleDialogClosed"
    >
      <div>
        <p>当前的用户：{{ userInfo.username }}</p>
        <p>当前的角色：{{ userInfo.role_name }}</p>
        <p>
          分配新角色：
          <el-select v-model="selectedRoleId" :placeholder="userInfo.role_name">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data () {
    // 自定义邮箱验证规则
    const checkEmail = (rule, value, cb) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+([a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    // 自定义手机号验证规则
    const checkMobile = (rule, value, cb) => {
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      // 定义分页数据
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      // 定义添加用户model值
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 定义添加用户验证规则
      addFormRules: {
        username: [
          {
            required: true,
            message: '请输入用户名',
            trigger: 'blur'
          },
          {
            min: 3,
            max: 10,
            message: '用户名长度在3~10个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          {
            required: true,
            message: '请输入密码',
            trigger: 'blur'
          },
          {
            min: 6,
            max: 16,
            message: '密码长度在6~16个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          {
            required: true,
            message: '请输入邮箱地址',
            trigger: 'blur'
          },
          {
            validator: checkEmail,
            trigger: 'blur'
          }
        ],
        mobile: [
          {
            required: true,
            message: '请输入手机号',
            trigger: 'blur'
          },
          {
            validator: checkMobile,
            trigger: 'blur'
          }
        ]
      },
      userlist: [],
      total: 0,
      addDialogVisible: false,
      editDialogVisible: false,
      setDialogVisible: false,
      editForm: {},
      // 需要分配角色的用户信息
      userInfo: {},
      // 所有角色数据列表
      rolesList: {},
      // 已选中角色ID值
      selectedRoleId: ''
    }
  },
  // 页面刷新自动获取用户列表
  created () {
    this.getUserList()
  },
  methods: {
    // 获取用户列表
    async getUserList () {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$messages.error('获取用户列表失败')
      }
      this.userlist = res.data.users
      this.total = res.data.total
      // console.log(res)
    },
    // 监听pagesize改变事件
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值改变事件
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch开关的状态
    async userstateChanged (userinfo) {
      // console.log(userinfo)
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        return this.$message.error('修改用户状态失败')
      }
      this.$message.success('修改用户状态成功')
    },
    // 监听对话框关闭事件
    addDislogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    // 添加用户
    addUser () {
      // 预验证
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.post('users', this.addForm)
        // 判断用户是否添加成功
        if (res.meta.status !== 201) {
          return this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        // 隐藏对话框
        this.addDialogVisible = false
        // 重新加载用户列表
        this.getUserList()
      })
    },
    // 获取用户id
    async showEditDialog (id) {
      const { data: res } = await this.$http.get('users/' + id)
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 修改用户
    editUser (id) {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.put('users/' + id, this.editForm)
        // 判断用户是否修改成功
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败')
        }
        this.$message.success('更新用户信息成功')
        // 隐藏对话框
        this.editDialogVisible = false
        // 重新加载用户列表
        this.getUserList()
      })
    },
    // 删除用户
    async delUser (id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该文件, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch((err) => err)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      // 判断用户是否删除成功
      console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }
      this.$message.success('删除用户成功')

      // 重新加载用户列表
      this.getUserList()
    },
    // 分配角色
    async setRole (userInfo) {
      this.userInfo = userInfo
      // console.log(userInfo)
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('角色信息获取失败')
      }
      this.rolesList = res.data
      this.setDialogVisible = true
    },
    // 点击确定更换角色
    async saveRoleInfo () {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectedRoleId
        }
      )
      if (res.meta.status !== 200) {
        return this.$message.error('设置角色失败')
      }
      this.$message.success('设置角色成功')
      // console.log(res)
      this.setDialogVisible = false
      this.getUserList()
    },
    setRoleDialogClosed () {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>
<style lang="less" scoped></style>
